diff --git a/src/main/kotlin/com/winterbe/expekt/ExpectDouble.kt b/src/main/kotlin/com/winterbe/expekt/ExpectDouble.kt
new file mode 100644
index 0000000..40fd601
--- /dev/null
+++ b/src/main/kotlin/com/winterbe/expekt/ExpectDouble.kt
@@ -0,0 +1,149 @@
+package com.winterbe.expekt
+
+/**
+ * @author Benjamin Winterberg
+ */
+class ExpectDouble(subject: Double?, flavor: Flavor) : ExpectComparable<Double>(subject, flavor) {
+
+    fun closeTo(other: Double): ExpectDouble {
+        words.add("closeTo")
+        words.add(other.toString())
+        verify { false }   // TODO
+        return this
+    }
+
+    override val to: ExpectDouble get() {
+        super.to
+        return this
+    }
+
+    override val be: ExpectDouble get() {
+        super.be
+        return this
+    }
+
+    override val been: ExpectDouble get() {
+        super.been
+        return this
+    }
+
+    override val that: ExpectDouble get() {
+        super.that
+        return this
+    }
+
+    override val which: ExpectDouble get() {
+        super.which
+        return this
+    }
+
+    override val and: ExpectDouble get() {
+        super.and
+        return this
+    }
+
+    override val has: ExpectDouble get() {
+        super.has
+        return this
+    }
+
+    override val have: ExpectDouble get() {
+        super.have
+        return this
+    }
+
+    override val with: ExpectDouble get() {
+        super.with
+        return this
+    }
+
+    override val at: ExpectDouble get() {
+        super.at
+        return this
+    }
+
+    override val a: ExpectDouble get() {
+        super.a
+        return this
+    }
+
+    override val an: ExpectDouble get() {
+        super.an
+        return this
+    }
+
+    override val of: ExpectDouble get() {
+        super.of
+        return this
+    }
+
+    override val same: ExpectDouble get() {
+        super.same
+        return this
+    }
+
+    override val the: ExpectDouble get() {
+        super.the
+        return this
+    }
+
+    override val `is`: ExpectDouble get() {
+        super.`is`
+        return this
+    }
+
+    override val not: ExpectDouble get() {
+        super.not
+        return this
+    }
+
+    override val `null`: ExpectDouble get() {
+        super.`null`
+        return this
+    }
+
+    override fun within(min: Double, max: Double): ExpectDouble {
+        super.within(min, max)
+        return this
+    }
+
+    override fun most(other: Double): ExpectDouble {
+        super.most(other)
+        return this
+    }
+
+    override fun least(other: Double): ExpectDouble {
+        super.least(other)
+        return this
+    }
+
+    override fun above(other: Double): ExpectDouble {
+        super.above(other)
+        return this
+    }
+
+    override fun below(other: Double): ExpectDouble {
+        super.below(other)
+        return this
+    }
+
+    override fun <S : Double> instanceof(type: Class<S>): ExpectDouble {
+        super.instanceof(type)
+        return this
+    }
+
+    override fun identity(other: Double?): ExpectDouble {
+        super.identity(other)
+        return this
+    }
+
+    override fun equal(other: Double?): ExpectDouble {
+        super.equal(other)
+        return this
+    }
+
+    override fun satisfy(predicate: (Double) -> Boolean): ExpectDouble {
+        super.satisfy(predicate)
+        return this
+    }
+}
\ No newline at end of file